Fig. 1

The typical ICG fluorescence intensity analysis of AVM before and after surgery. A1 The AVM hemodynamics characteristics before clipping feeding artery. B1 The typical picture of ICG video, hemodynamic parameter acquisition area of the nidus before resection, and the fluorescence intensity curve analysis chart. C1 The typical picture of ICG video, hemodynamic parameter acquisition area of the cortex vessels before resection, and the fluorescence intensity curve analysis chart. A2 The AVM hemodynamics characteristics after clipped one feeding artery. The blood increased in part of AVM. B2 The typical picture of ICG video, hemodynamic parameter acquisition area of the nidus after clipping one feeding artery, and the fluorescence intensity curve analysis chart. C2 The typical picture of ICG video , hemodynamic parameter acquisition area of the cortex vessels after clipping one feeding artery, and the fluorescence intensity curve analysis chart. A3 The AVM hemodynamics characteristics after clipped two feeding artery. Some communicating artery open. B3 The typical picture of ICG video, hemodynamic parameter acquisition area of the nidus after clipping two feeding artery, and the fluorescence intensity curve analysis chart. C3 The typical picture of ICG video , hemodynamic parameter acquisition area of the cortex vessels after clipping two feeding artery, and the fluorescence intensity curve analysis chart. A4 After resection of AVM, cortex vessel blood increased. B4 The typical picture of ICG video and hemodynamic parameter acquisition area of the cortex vessels after surgery. C4 The fluorescence intensity curve analysis chart of cortex vessels after surgery